US20040099012A1 - Device for closing and opening the mould halves of a glass moulding machine - Google Patents

Device for closing and opening the mould halves of a glass moulding machine Download PDF

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US20040099012A1
US20040099012A1 US10/275,796 US27579602A US2004099012A1 US 20040099012 A1 US20040099012 A1 US 20040099012A1 US 27579602 A US27579602 A US 27579602A US 2004099012 A1 US2004099012 A1 US 2004099012A1
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Prior art keywords
drive
frame
manner
spindle
drive element
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US7017374B2 (en
Inventor
Hermann Bogert
Manfred Drawert
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Heye Holding GmbH
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Heye Holding GmbH
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Assigned to HERMANN HEYE I.I. reassignment HERMANN HEYE I.I. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOGERT, HERMANN, DRAWERT, MANFRED
Assigned to HEYE INTERNATIONAL GMBH reassignment HEYE INTERNATIONAL GMBH CONFIRMATORY LICENSE (SEE DOCUMENT FOR DETAILS). Assignors: HEYE HOLDING GMBH
Assigned to HEYE HOLDING GMBH reassignment HEYE HOLDING GMBH CONFIRMATORY ASSIGNMENT Assignors: HERMANN HEYE I.I., HEYE, HERMANN
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/13—Blowing glass; Production of hollow glass articles in gob feeder machines
    • C03B9/14—Blowing glass; Production of hollow glass articles in gob feeder machines in "blow" machines or in "blow-and-blow" machines
    • C03B9/16—Blowing glass; Production of hollow glass articles in gob feeder machines in "blow" machines or in "blow-and-blow" machines in machines with turn-over moulds
    • C03B9/165—Details of such machines, e.g. guide funnels, turn-over mechanisms
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/34—Glass-blowing moulds not otherwise provided for
    • C03B9/353—Mould holders ; Mould opening and closing mechanisms
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/34—Glass-blowing moulds not otherwise provided for
    • C03B9/353—Mould holders ; Mould opening and closing mechanisms
    • C03B9/3532—Mechanisms for holders of half moulds moving by rotation about a common vertical axis

Definitions

  • the invention relates to a device according to the preamble of claim 1 .
  • a parallel closing device for mold halves is known per se from DE 198 51 133 A1.
  • a servo motor is arranged with a vertical longitudinal axis and drives a lead screw by means of its upper driven shaft via a coupling, which lead screw comprises lower left-hand threads and upper right-hand threads. In each case a leftward nut and a rightward nut are in engagement with these opposed threads.
  • the nuts are each connected via an articulated lever pair to a common horizontal pivot shaft.
  • the pivot shaft together with the mold half support mechanisms is moved in a reciprocating manner in a horizontal plane upon rotation of the lead screw.
  • FIG. 3 illustrates the closed mold position
  • FIG. 4 shows the open mold position. This design is comparatively costly and requires a relatively large amount of space both in the horizontal and vertical direction.
  • a compact bearing unit which, according to claim 4 , can also have the bearing of the spindle integrated therein.
  • the bearing housing and the guide device only take up a very small amount of space in the frame, e.g. in the box of an I.S. glass forming machine.
  • the device takes up a particularly small amount of space inside the frame.
  • the embodiment in accordance with claim 12 provides a space-saving arrangement which is therefore particularly favorable for the electro-servo motor, because its bearings are loaded to the least extent when it is arranged horizontally.
  • FIG. 1 shows a partially cut-away plan view of one embodiment of the device
  • FIG. 2 shows the partially cut-away view taken along line II-II in FIG. 1, and
  • FIG. 3 shows the enlarged sectional view taken along line III-III in FIG. 1.
  • FIG. 1 shows a part of a glass forming machine 1 , in this case a section of an I.S. glass forming machine.
  • the glass forming machine 1 comprises a frame (box) 2 having an internal space 3 and an external wall 4 .
  • a device 5 for opening and closing mold halves of at least one mold of the glass forming machine 1 is disposed partially in the internal space 3 and partially outside the frame 2 .
  • the mold halves, mold half support mechanisms, hinge column and first intermediate members are known per se e.g. from U.S. Pat. No. 1,911,119A and therefore will not be illustrated and described again here.
  • the device 5 is intended to close and open finishing mold halves.
  • each shaft 6 , 7 is connected via a lever mechanism 8 and 9 to a common drive shaft 10 (FIG. 2).
  • the lever mechanism 8 consists of an arm 11 which is affixed to the drive shaft 10 , a steering rod 12 which is articulated to the arm, and a crank 13 which is articulated to the steering rod 12 and affixed to the shaft 6 .
  • the lever mechanism 9 consists of an arm 14 which is affixed to the drive shaft 10 , a steering rod 15 which is articulated to the arm 14 , and a crank 16 which is articulated to the steering rod 15 and is affixed to the shaft 7 .
  • a lever 17 is affixed to the drive shaft 10 and is a component of second intermediate members 18 between the drive shaft 10 and a drive element 19 of a drive 20 .
  • the second intermediate members 18 include a bracket 21 which is articulated on one side by a pin 22 to the lever 17 and is articulated on the other side by a pin 23 to the drive element 19 .
  • the drive element 19 can be moved linearly in a reciprocating manner by means of the drive 20 .
  • the drive element 19 comprises on a first side 24 (on the right in FIG. 1) an axial orifice 25 , into which a portion of a nut 26 extends on the right-hand side.
  • the nut 26 comprises an annular flange 27 which is affixed to the drive element 19 by means of screws 28 .
  • a second side 29 of the drive element 19 which side is remote from the first side 24 , supports the pin 23 and is mounted in such a manner as to be axially displaceable in a bearing housing 30 .
  • the bearing housing 30 also comprises a stationary part 31 of a guide device 32 .
  • a free end of a spindle 33 extends through the nut 26 into the orifice 25 and its other end (on the right in FIG. 1) is likewise mounted in a rotatable yet axially fixed manner in the bearing housing 30 .
  • the stationary part 31 of the guide device 32 comprises two guide rods 34 and 35 (cf. also FIG. 3) which are disposed in parallel with the spindle 33 and which are fixed in an intermediate housing 36 of the bearing housing 30 .
  • An extension 37 which is fixed to the drive element 19 is guided in a displaceable manner on the guide rods 34 , 35 by means of ball boxes 38 .
  • the drive element 19 is thus axially displaceable, it is also effectively and precisely secured against rotating about its own longitudinal axis 39 .
  • the bearing housing 30 , the drive element 19 , the spindle 33 and the guide device 32 are disposed in such a manner as to save space in the internal space 3 of the frame 2 .
  • the drive 20 comprises an electro-servo motor 44 which is connected via an angular transmission 45 and a coupling 46 to a drive spigot 47 of the spindle 33 .
  • the electro-servo motor 44 is disposed with a horizontal longitudinal axis 48 , which is in parallel with the external wall 4 , outside the frame 2 .
  • a part 49 of the angular transmission 45 formed as a planetary gear extends from outside the frame 2 into an opening 50 in the external wall 4 of the frame 2 .
  • the transmission part 49 comprises an external flange 51 , via which it is screwed by means of screws 52 to a sleeve 53 .
  • the sleeve 53 is screwed by means of screws 54 to the end of the bearing housing 30 on the right-hand side in FIG. 1.
  • the electro-servo motor 44 and the angular transmission 45 can be accessed rapidly and easily on the external side of the frame 2 .
  • the other parts of the device 5 can also be accessed easily. This is also made possible by a side window 55 in the intermediate housing 36 .
  • the closed mold halves Owing to the substantial transmission ratio downstream of the electro-servo motor 44 , the closed mold halves can be kept closed with, comparatively speaking, a very low level of torque on the output shaft of the electro-servo motor 44 .
  • FIGS. 2 and 3 show further details of the glass forming machine 1 and the device 5 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Transmission Devices (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

Each mold half is held by means of a mold half holding mechanism which can be driven so as to pivot in a reciprocating manner about a common vertical hinge column by means of a vertical shaft (6; 7), which is mounted in a rotatable manner in a frame (2) of the glass forming machine (1), and by means of first intermediate members. Each shaft (6; 7) is connected via a lever mechanism (8; 9) to a common drive shaft which can be pivoted in a reciprocating manner by means of a drive element (19), which can be moved linearly in a reciprocating manner, of a drive (20) and by means of second intermediate members (18). The drive element (19) can be mounted on a nut (26) and secured against rotating about a longitudinal axis (39) of the drive element (19) by means of a guide device (32). The nut (26) is in engagement with a spindle (33). The spindle (33) is mounted in an axially fixed, rotatable manner and can be driven rotationally in a reciprocating manner by means of the drive (20).

Description

  • The invention relates to a device according to the preamble of [0001] claim 1.
  • In the case of a known device of this type (U.S. Pat. No. 1,911,119A, FIGS. 3 and 8), the devices for closing and opening the blankmold halves and finishing mold halves are formed in a similar manner. In each case, the two intermediate members are driven in a reciprocating manner by means of a piston rod of a piston-cylinder unit. The two piston-cylinder units are disposed in the interior of the frame (box) of the I.S. (individual section) glass forming machine. In this manner, the two piston-cylinder units take up a lot of useful space inside the frame. Moreover, the linear movement of each piston rod is no longer sufficiently precise and suitably reproducible to meet the current requirements for the production of hollow glass. [0002]
  • A parallel closing device for mold halves is known per se from DE 198 51 133 A1. A servo motor is arranged with a vertical longitudinal axis and drives a lead screw by means of its upper driven shaft via a coupling, which lead screw comprises lower left-hand threads and upper right-hand threads. In each case a leftward nut and a rightward nut are in engagement with these opposed threads. The nuts are each connected via an articulated lever pair to a common horizontal pivot shaft. The pivot shaft together with the mold half support mechanisms is moved in a reciprocating manner in a horizontal plane upon rotation of the lead screw. FIG. 3 illustrates the closed mold position, whereas FIG. 4 shows the open mold position. This design is comparatively costly and requires a relatively large amount of space both in the horizontal and vertical direction. [0003]
  • It is the object of the invention to reduce the spatial requirement of the device inside the frame and to render it possible to drive the second intermediate members in a very precise and extremely reproducible manner. [0004]
  • This object is achieved by the features of [0005] claim 1. In this manner, it is possible to provide a space-saving and yet very precisely operating device for closing and opening the mold halves. This device is particularly suitable for use in I.S. glass forming machines.
  • In accordance with [0006] claim 2, there is provided a device with an advantageously interleaved structural design which saves a correspondingly large amount of space.
  • In accordance with [0007] claim 3, there is provided a compact bearing unit which, according to claim 4, can also have the bearing of the spindle integrated therein.
  • The features of [0008] claim 5 render it possible in a particularly precise manner to guide the nut and to prevent rotation thereof.
  • The features of [0009] claim 6 render it possible in a simple yet extremely precise manner to guide the nut and prevent rotation thereof.
  • In accordance with [0010] claim 7, the bearing housing and the guide device only take up a very small amount of space in the frame, e.g. in the box of an I.S. glass forming machine.
  • The features of [0011] claim 8 or 9 ensure an extremely precise, programmably controllable drive.
  • In accordance with [0012] claim 10, the device takes up a particularly small amount of space inside the frame.
  • In accordance with [0013] claim 11, there is provided a compact drive line having the required freedom of movement in the region where it is introduced into the frame. However, in this region, it is only necessary to take into account extremely small relative movements between the drive line and the frame.
  • The embodiment in accordance with [0014] claim 12 provides a space-saving arrangement which is therefore particularly favorable for the electro-servo motor, because its bearings are loaded to the least extent when it is arranged horizontally.
    •
  • These and further features and advantages of the invention will be explained in detail hereinafter with reference to the embodiment illustrated in the drawings, in which [0015]
  • FIG. 1 shows a partially cut-away plan view of one embodiment of the device, [0016]
  • FIG. 2 shows the partially cut-away view taken along line II-II in FIG. 1, and [0017]
  • FIG. 3 shows the enlarged sectional view taken along line III-III in FIG. 1.[0018]
  • FIG. 1 shows a part of a [0019] glass forming machine 1, in this case a section of an I.S. glass forming machine. The glass forming machine 1 comprises a frame (box) 2 having an internal space 3 and an external wall 4.
  • A [0020] device 5 for opening and closing mold halves of at least one mold of the glass forming machine 1 is disposed partially in the internal space 3 and partially outside the frame 2. The mold halves, mold half support mechanisms, hinge column and first intermediate members are known per se e.g. from U.S. Pat. No. 1,911,119A and therefore will not be illustrated and described again here. In the present drawings, the device 5 is intended to close and open finishing mold halves. However, in a similar manner it is also possible to form a device for closing and opening blankmold halves of the glass forming machine 1.
  • In the [0021] frame 2, vertical shafts 6 and 7 are mounted in a rotatable manner and drive the aforementioned first intermediate members [not illustrated]. Each shaft 6, 7 is connected via a lever mechanism 8 and 9 to a common drive shaft 10 (FIG. 2). The lever mechanism 8 consists of an arm 11 which is affixed to the drive shaft 10, a steering rod 12 which is articulated to the arm, and a crank 13 which is articulated to the steering rod 12 and affixed to the shaft 6. In a similar manner, the lever mechanism 9 consists of an arm 14 which is affixed to the drive shaft 10, a steering rod 15 which is articulated to the arm 14, and a crank 16 which is articulated to the steering rod 15 and is affixed to the shaft 7. Moreover, a lever 17 is affixed to the drive shaft 10 and is a component of second intermediate members 18 between the drive shaft 10 and a drive element 19 of a drive 20.
  • In addition to the lever [0022] 17, the second intermediate members 18 include a bracket 21 which is articulated on one side by a pin 22 to the lever 17 and is articulated on the other side by a pin 23 to the drive element 19. The drive element 19 can be moved linearly in a reciprocating manner by means of the drive 20. The drive element 19 comprises on a first side 24 (on the right in FIG. 1) an axial orifice 25, into which a portion of a nut 26 extends on the right-hand side. The nut 26 comprises an annular flange 27 which is affixed to the drive element 19 by means of screws 28.
  • A [0023] second side 29 of the drive element 19, which side is remote from the first side 24, supports the pin 23 and is mounted in such a manner as to be axially displaceable in a bearing housing 30. The bearing housing 30 also comprises a stationary part 31 of a guide device 32.
  • A free end of a [0024] spindle 33 extends through the nut 26 into the orifice 25 and its other end (on the right in FIG. 1) is likewise mounted in a rotatable yet axially fixed manner in the bearing housing 30.
  • The [0025] stationary part 31 of the guide device 32 comprises two guide rods 34 and 35 (cf. also FIG. 3) which are disposed in parallel with the spindle 33 and which are fixed in an intermediate housing 36 of the bearing housing 30. An extension 37 which is fixed to the drive element 19 is guided in a displaceable manner on the guide rods 34, 35 by means of ball boxes 38. Although the drive element 19 is thus axially displaceable, it is also effectively and precisely secured against rotating about its own longitudinal axis 39.
  • Welded to the underside [0026] 40 (FIGS. 2 and 3) of the intermediate housing 36, is a transverse bar 41, through which a screw 42 is screwed into a base 43 of the frame 2 in order to fix the bearing housing 30.
  • In this way, the [0027] bearing housing 30, the drive element 19, the spindle 33 and the guide device 32 are disposed in such a manner as to save space in the internal space 3 of the frame 2.
  • The [0028] drive 20 comprises an electro-servo motor 44 which is connected via an angular transmission 45 and a coupling 46 to a drive spigot 47 of the spindle 33. The electro-servo motor 44 is disposed with a horizontal longitudinal axis 48, which is in parallel with the external wall 4, outside the frame 2. A part 49 of the angular transmission 45 formed as a planetary gear extends from outside the frame 2 into an opening 50 in the external wall 4 of the frame 2. The transmission part 49 comprises an external flange 51, via which it is screwed by means of screws 52 to a sleeve 53. For its part, the sleeve 53 is screwed by means of screws 54 to the end of the bearing housing 30 on the right-hand side in FIG. 1.
  • The electro-[0029] servo motor 44 and the angular transmission 45 can be accessed rapidly and easily on the external side of the frame 2. The other parts of the device 5 can also be accessed easily. This is also made possible by a side window 55 in the intermediate housing 36.
  • In the lower half of FIG. 1, all elements are illustrated by continuous lines in the particular operational end position, in which the associated mold halves are closed. In contrast, in the upper half of FIG. 1, the [0030] elements 11, 12, 13 and 6 are illustrated by broken lines in the particular operational end position, in which the mold halves are fully open.
  • Moreover, in the lower half of FIG. 1, some of the elements are illustrated by broken lines in the particular operational end position corresponding to the fully open position of the mold halves. By rotating the [0031] spindle 33 the pin 23 is thus displaced in a linear manner to the left in FIG. 1 by a stroke 56. The pin 22 travels on a circular arc about a longitudinal axis 57 of the drive shaft 10 across an angle 58. As a result, a pin 59 between the crank 16 and the steering rod 15 is displaced across an angle 60. At the same time, a pin 61 between the arm 14 and the steering rod 15 pivots upwards in FIG. 1 across an angle 62 until reaching the end position illustrated by broken lines.
  • Owing to the substantial transmission ratio downstream of the electro-[0032] servo motor 44, the closed mold halves can be kept closed with, comparatively speaking, a very low level of torque on the output shaft of the electro-servo motor 44.
  • FIGS. 2 and 3 show further details of the [0033] glass forming machine 1 and the device 5.

Claims (12)

1. Device (5) for closing and opening mold halves of at least one mold of a glass forming machine (1),
wherein each mold half is held by means of a mold half holding mechanism,
wherein each mold half holding mechanism can be driven so as to pivot in a reciprocating manner about a vertical hinge column by means of a vertical shaft (6; 7), which is mounted in a rotatable manner in a frame (2) of the glass forming machine (1), and by means of first intermediate members,
wherein each shaft (6; 7) is connected via a lever mechanism (8; 9) to a common drive shaft (10),
and wherein the drive shaft (10) can be pivoted in a reciprocating manner by means of a drive element (19), which can be moved linearly in a reciprocating manner, of a drive (20) and by means of second intermediate members (18),
characterised in that the drive element (19) can be mounted on a nut (26) and is secured against rotating about a longitudinal axis (39) of the drive element (19) by means of a guide device (32),
the nut (26) is in engagement with a spindle (33),
and the spindle (33) is mounted in an axially fixed, rotatable manner and can be driven rotationally in a reciprocating manner by means of the drive (20).
2. Device as claimed in claim 1,
characterised in that on a first side (24), which can be fixed on the nut (26), the drive element (19) comprises an orifice (25) which accommodates a free end of the spindle (33),
and a second side (29) of the drive element (19) remote from the first side (24) can be coupled to the second intermediate members (18).
3. Device as claimed in claim 2,
characterised in that the second side (29) is mounted in an axially displaceable manner in a bearing housing (30) supported on the frame (2).
4. Device as claimed in claim 3,
characterised in that the spindle (33) is mounted in a rotatable manner in the bearing housing (30).
5. Device as claimed in claim 3 or 4,
characterised in that a stationary part (31) of the guide device (32) is connected to the bearing housing (30).
6. Device as claimed in claim 5,
characterised in that the stationary part (31) comprises at least one guide rod (34; 35) which is disposed in parallel with the spindle (33),
and an extension (37) of the guide device (32) which is fixed relative to the nut (26) is guided in a displaceable manner on the at least one guide rod (34; 35).
7. Device as claimed in any one of claims 3 to 6,
characterised in that the bearing housing (30) is disposed in an internal space (3) in the frame (2).
8. Device as claimed in any one of claims 1 to 7,
characterised in that the drive (20) comprises an electro-servo motor (44).
9. Device as claimed in claim 8,
characterised in that the electro-servo motor (44) is connected via a transmission (45) and a coupling (46) to the spindle (33).
10. Device as claimed in claim 9,
characterised in that the electro-servo motor (44) is disposed with a horizontal longitudinal axis (48) outside the frame (2).
11. Device as claimed in claim 9 or 10,
characterised in that the transmission (45) protrudes from outside the frame (2) into an opening (50) in the frame (2) and is mounted in the opening (50) in such a manner as to be rotatable and axially displaceable about its longitudinal axis (39),
and a housing of the transmission (45) can be connected to a sleeve (53) and the sleeve (53) can be connected to the bearing housing (39).
12. Device as claimed in any one of claims 9 to 11,
characterised in that the transmission (45) is formed as an angular transmission,
and a longitudinal axis (48) of the electro-servo motor (44) is disposed in parallel with an external wall (4) of the frame (2).
US10/275,796 2000-12-06 2001-09-20 Device for closing and opening the mold halves of a glass molding machine Expired - Fee Related US7017374B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20020657.5 2000-12-06
DE20020657U DE20020657U1 (en) 2000-12-06 2000-12-06 Device for closing and opening mold halves of a glass molding machine
PCT/EP2001/010865 WO2002046111A1 (en) 2000-12-06 2001-09-20 Device for closing and opening the mould halves of a glass moulding machine

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US20040099012A1 true US20040099012A1 (en) 2004-05-27
US7017374B2 US7017374B2 (en) 2006-03-28

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EP (1) EP1278705B1 (en)
AU (1) AU2002212261A1 (en)
DE (2) DE20020657U1 (en)
WO (1) WO2002046111A1 (en)

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US7017374B2 (en) 2006-03-28
EP1278705A1 (en) 2003-01-29
EP1278705B1 (en) 2005-11-09
AU2002212261A1 (en) 2002-06-18
DE20020657U1 (en) 2002-01-17
DE50108006D1 (en) 2005-12-15

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